Aviation Maintenance Terms beginning with T

TA

Traffic Advisory (TCAS II)

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TAS

Traffic Advisory System

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TC

Type Certificate

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TCAS

Traffic Alert and Collision Avoidance System

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TCAS

I TCAS system that does not provide resolution advisories

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TCAS

II TCAS system that provides resolution advisories

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TCAS

Traffic Alert and Collision Avoidance System

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TCAS

I Traffic Alert and Collision Avoidance System (generation 1)

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TCAS

II Traffic Alert and Collision Avoidance System (generation 2)

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TCAS II

The second and current generation of instrument warning TCAS. It offers all the benefits of TCAS I, but also offers the pilot direct, vocalized instructions to avoid danger, known as a "Resolution Advisory" (RA). TCAS II systems coordinate their resolution advisories before issuing commands to the pilots, so that if one aircraft is instructed to descend, the other will typically be told to climb — maximizing the separation between the two aircraft.

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TIS-B

Traffic Information Service – Broadcast

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TIS-B

Traffic Information Service - Broadcast

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TOM

Time of Measurement

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TSO

Technical Standard Order

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TSO

Technical Standard Order

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TSOA

Technical Standard Order Authorization

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